Best Mutual Fund for Child Higher Education

Hi Sir I have 2 years old son and have started investing in Sundaram rural growth mutual fund in SIP mode(monthly 5K). Can i continue the SIP for next 15 years with same Sundaram fund or do i need to switch to another mutual fund.Please suggest on fund and also suggest the money which i was saving for my son is enough or need to increase the amount of SIP.My savings for plus2 and graduation of my son. please suggest sir